CN104984819B - A kind of oil shale end ore deposit ore-dressing technique - Google Patents
A kind of oil shale end ore deposit ore-dressing technique Download PDFInfo
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- CN104984819B CN104984819B CN201510465338.9A CN201510465338A CN104984819B CN 104984819 B CN104984819 B CN 104984819B CN 201510465338 A CN201510465338 A CN 201510465338A CN 104984819 B CN104984819 B CN 104984819B
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- oil shale
- ore
- water
- ore deposit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/02—General arrangement of separating plant, e.g. flow sheets specially adapted for oil-sand, oil-chalk, oil-shales, ozokerite, bitumen, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
A kind of oil shale end ore deposit ore-dressing technique, belongs to oil shale industry field, and be particularly suitable for use in oil shale end ore deposit processing and utilization industry.Water is added to carry out (10 13) mm screenings in oil shale raw ore, product on sieve (>10 13mm) carry out it is broken after and undersized product (<10 13mm) mixing sorted using hydrocyclone, underflow product is dehydrated into spoil product by high-frequency screen, overflow product is granulated after high-frequency screen is dehydrated, as block concentrate product, it is all that concentrating clarifying is carried out by black water caused by high-frequency screen, sediment obtains product from failing through press filtration, and primary water and filtrate are used as recirculated water.The present invention is after the ore deposit sieving approach of oil shale end, directly sorted using hydrocyclone, it is simple, efficient, economical, solve the problems, such as that conventional technological process is complicated, investment of production is high, the efficiency of separation is low, the concentrate yield of oil shale is effectively increased, there is higher economic value.
Description
Technical field
The invention belongs to oil shale industry field, and be particularly suitable for use in oil shale end ore deposit processing and utilization industry, for removing oil
Inorganic mineral in the ore deposit of shale end, higher concentrate yield is obtained, produce bigger economic benefit.
Background technology
Oil shale belongs to unconventional petroleum resources, and it is non-to be listed in 21 century with aboundresources and the feasibility of utilization
Often important takes over the energy, and it is all non-renewable fossil energy as oil, natural gas, coal.Oil shale is done through low temperature
Shale oil can be obtained by evaporating, and like crude oil gasoline, diesel oil can be made or as fuel oil in shale oils.In Waste Era of Oil, have
It is active to close utilization of the country to oil shale.Oil Shale Resources in China rich reserves, are also produced in progress of coal mining
A large amount of oil shales are given birth to, utilization oil shale can not only alleviate contradiction between oil supply and demand, can also solve because discarding oil shale
Caused by environmental problem, improve resource utilization.
At present, the oil shale Chemical Manufacture process in China, simple crushing and screening is only passed through to oil shale raw ore
To certain grade (common is 10-80mm), product is directly subjected to chemical industry conversion.This method causes a large amount of spoils to reside in oil
It is unfavorable to subsequent transformation in shale raw ore.Publication No. disclosed in China State Intellectual Property Office September in 2014 19 days
A kind of oil shale pre-selection discharge refuse -- distillation process contained CN104194814A, disclose a kind of simple two products jigging sorting
Method, but pass through substantial amounts of industrial experiment in putting into practice, it was demonstrated that this method can not effectively be sorted to oil shale, in practice more
There is no separating effect in the case of more, due to the very close Rock Specific Gravity of oil shale proportion, and the specific gravity of separation is all in 2.5 gram per centimeters3
More than, conventional coal jigging technology can not be used.The technique for coarse grain (>10mm) oil shale carries out pre- discharge refuse, and for oil
The pre- discharge refuse technique of shale end ore deposit, still belongs to blank field, therefore how to sort oil shale end ore deposit and obtain good separating effect, into
For industry problems, a kind of oil shale end mineral water is proposed by many experiments present invention and is situated between the new technology of sorting.
The content of the invention
The purpose of the present invention is the processing and utilization for oil shale end ore deposit, there is provided it is a kind of it is simple, efficiently, can significantly improve
The oil shale end ore deposit ore-dressing technique of oil shale concentrate yield.
The object of the present invention is achieved like this, and the oil shale beneficiation method step is as follows：
A. oil shale raw ore is subjected to (10-13) mm screenings, produces undersized product and granularity of the granularity for-(10-13) mm
For product on+(10-13) mm sieve；
B. sieve upper product turns into broken material with crusher in crushing to (10-13) mm is less than, and is mixed with undersized product；
C. mixed material is classified using hydraulic classification swirler, and two kinds of materials, underflow product are produced after classification
And overflow product；
D. underflow product produces spoil product and black water by high-frequency screen dehydration；
E. overflow product produces light product and black water by high-frequency screen dehydration；
F. light product, which be granulated, turns into block concentrate product；
G. the black water obtained by dehydration d. and dehydration e. collects carry out concentrating clarifying, produces primary water
And enriched product；
H. enriched product turns into product from failing by press filtration, and filtrate is continuing with primary water collectively as recirculated water.
The dehydration equipment is high-frequency screen or its equivalent screening installation.
Above-mentioned ore-dressing technique is employed, the present invention can largely improve the oil content of oil shale concentrate, can effectively improve spoil
Ash content, simplification of flowsheet, sorting cost is reduced, is a kind of brand-new oil shale end ore deposit method for separating.This method also improves
The resource utilization of oil shale, the economic benefit of enterprise is added, meet the requirement of sustainable development and energy-conserving and environment-protective, had wide
General practicality.
Brief description of the drawings
Fig. 1 is a kind of oil shale end ore deposit mineral processing circuit figure of the present invention.
In figure：1. undersized product；2. the upper product of sieve；3. broken material；4. underflow product；5. overflow product；6. spoil produces
Product；7. black water；8. black water；9. light product；10. piece concentrate product；11. primary water；12. enriched product；13. filtrate；14.
Product from failing；
Embodiment
One embodiment of the present of invention is further described below in conjunction with accompanying drawing：
As shown in figure 1, a kind of oil shale end ore deposit ore-dressing technique step of the present invention is as follows：
A. oil shale raw ore is subjected to (10-13) mm screenings, produces undersized product 1 and granularity of the granularity for-(10-13) mm
For product 2 on+(10-13) mm sieve；
B. sieve upper product 2 turns into broken material 3 with crusher in crushing to (10-13) mm is less than, and mixed with undersized product 1
Close；
C. mixed material is classified using hydraulic classification swirler, and two kinds of materials, underflow product 4 are produced after classification
And overflow product 5；
D. underflow product 4 produces spoil product 6 and black water 7 by high-frequency screen dehydration；
E. overflow product 5 produces light product 9 and black water 8 by high-frequency screen dehydration；
F. light product 9, which be granulated, turns into block concentrate product 10；
G. the black water 7,8 obtained by dehydration d. and dehydration e. collects carry out concentrating clarifying, produces clear
Clear water 11 and enriched product 12；
H. enriched product 12 turns into product from failing 14 by press filtration, and filtrate 13 is continued with primary water 11 collectively as recirculated water
Use.
The dehydration equipment is high-frequency screen or its equivalent screening installation.
Though the present invention lists less embodiment, what the person skilled of this area was done to the present invention some changes
Type, improvement, replacement etc., or the embodiment above make any combinations change, within protection scope of the present invention.
Claims (2)
1. a kind of oil shale end ore deposit ore-dressing technique, it is characterised in that the processing step is as follows：
A. oil shale raw ore is subjected to (10-13) mm screenings, produce granularity is for-(10-13) mm undersized product (1) and granularity
Product (2) on+(10-13) mm sieve；
B. sieve upper product (2) turns into broken material (3) with crusher in crushing to (10-13) mm is less than, and mixed with undersized product (1)
Close；
C. mixed material is classified using hydraulic classification swirler, after classification produce two kinds of materials, underflow product (4) and
Overflow product (5)；
D. underflow product (4) produces spoil product (6) and black water (7) by high-frequency screen dehydration；
E. overflow product (5) produces light product (9) and black water (8) by high-frequency screen dehydration；
F. light product (9), which be granulated, turns into block concentrate product (10)；
G. carry out concentrating clarifying is collected in the black water (7) obtained by dehydration d. and dehydration e., (8), produces clear
Clear water (11) and enriched product (12)；
H. enriched product (12) turns into product from failing (14) by press filtration, and filtrate (13) is with primary water (11) collectively as recirculated water
It is continuing with.
2. a kind of oil shale end ore deposit ore-dressing technique according to claim 1, it is characterised in that the dehydration equipment is high frequency
Sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510465338.9A CN104984819B (en) | 2015-07-31 | 2015-07-31 | A kind of oil shale end ore deposit ore-dressing technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510465338.9A CN104984819B (en) | 2015-07-31 | 2015-07-31 | A kind of oil shale end ore deposit ore-dressing technique |
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| CN104984819A CN104984819A (en) | 2015-10-21 |
| CN104984819B true CN104984819B (en) | 2017-12-19 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536980B (en) * | 2016-01-28 | 2017-12-08 | 北京国华科技集团有限公司 | A kind of oil shale high accuracy method for separating |
| CN105665125A (en) * | 2016-03-23 | 2016-06-15 | 北京科技大学 | Device and method for concentrating kerogen from easily-slimed oil shale |
| CN106607183B (en) * | 2017-02-09 | 2019-11-08 | 中国矿业大学 | A kind of modular high-density coal measures oil shale process for upgrading and upgrading system |
| CN108855579B (en) * | 2017-05-12 | 2020-09-01 | 山西世纪新龙腾科技有限公司 | Coal dressing method by using aqueous medium cyclone |
| CN111298954A (en) * | 2020-03-04 | 2020-06-19 | 中国矿业大学 | Process for heavy-medium separation of oil shale from two pressurized products |
| CN115338105A (en) * | 2022-07-28 | 2022-11-15 | 秦皇岛优格玛工业技术有限公司 | Method and system for grading, removing powder, selecting and upgrading oil shale |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4506835A (en) * | 1982-05-06 | 1985-03-26 | Occidental Research Corp. | Oil shale beneficiation |
| US4528090A (en) * | 1983-10-17 | 1985-07-09 | Mobil Oil Corporation | Oil shale beneficiation by size reduction combined with heavy media separation |
| CN101602029A (en) * | 2009-06-27 | 2009-12-16 | 勃利县森清能源开发有限公司 | From raw coal and select the technology of cleaned coal in the locked middlings of coal |
| CN103831164A (en) * | 2014-02-24 | 2014-06-04 | 太原理工大学 | Gravity-flotation joint separation technology for coking middlings |
| CN104194814A (en) * | 2014-09-19 | 2014-12-10 | 中国矿业大学(北京) | Oil shale primary gangue discharging and distillation process |
| CN104226465A (en) * | 2014-09-17 | 2014-12-24 | 中国矿业大学(北京) | Gravity separation and kerogen enrichment technology of oil shale |
-
2015
- 2015-07-31 CN CN201510465338.9A patent/CN104984819B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4506835A (en) * | 1982-05-06 | 1985-03-26 | Occidental Research Corp. | Oil shale beneficiation |
| US4528090A (en) * | 1983-10-17 | 1985-07-09 | Mobil Oil Corporation | Oil shale beneficiation by size reduction combined with heavy media separation |
| CN101602029A (en) * | 2009-06-27 | 2009-12-16 | 勃利县森清能源开发有限公司 | From raw coal and select the technology of cleaned coal in the locked middlings of coal |
| CN103831164A (en) * | 2014-02-24 | 2014-06-04 | 太原理工大学 | Gravity-flotation joint separation technology for coking middlings |
| CN104226465A (en) * | 2014-09-17 | 2014-12-24 | 中国矿业大学(北京) | Gravity separation and kerogen enrichment technology of oil shale |
| CN104194814A (en) * | 2014-09-19 | 2014-12-10 | 中国矿业大学(北京) | Oil shale primary gangue discharging and distillation process |
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| CN104984819A (en) | 2015-10-21 |
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